Polycarboxylate based anti-mud agent and preparation method thereof

A technology of polycarboxylate and anti-mud agent, which is applied in the field of building materials and concrete admixtures, can solve the problems of increasing construction costs, etc., and achieve the effects of reduced adsorption, low cost and simple process

Active Publication Date: 2015-04-01
山西科腾环保新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution is to increase the amount of polycarboxylate superplasticizer to reduce the impact of

Method used

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  • Polycarboxylate based anti-mud agent and preparation method thereof
  • Polycarboxylate based anti-mud agent and preparation method thereof
  • Polycarboxylate based anti-mud agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: the preparation method of novel environment-friendly polycarboxylate series anti-mud agent:

[0042] The present embodiment selects following raw material:

[0043] Polyoxyethylene methacrylate (TPEG) 300.0g

[0044] Hydroxyethyl methacrylate 32g

[0045] Acrylic acid 12.5g

[0046] Mercaptopropionic acid 1.0g

[0047] Hydrogen peroxide 7.5g

[0048] Concrete preparation steps are:

[0049](1) Preparation of acrylic acid solution: acrylic acid solution is made of 12.5g of acrylic acid, 1.0g of mercaptopropionic acid and 70g of deionized water; (2) Preparation of hydroxyethyl methacrylate solution: hydroxyethyl methacrylate solution is made of methyl 32g of hydroxyethyl acrylate and 35g of deionized water; (3) Put 400g of deionized water into a four-necked flask equipped with a stirrer and a peristaltic pump, then raise the temperature to 50°C and then add polyoxyethylene methacrylate ( TPEG) 300.0g, hydrogen peroxide 7.5g, stirred and heated up to 60...

Embodiment 2

[0050] Embodiment 2: the preparation method of novel environment-friendly polycarboxylate series anti-mud agent:

[0051] The present embodiment selects following raw material:

[0052] Allyl polyoxyethylene ether (APEG) 300.0g

[0053] Hydroxyethyl acrylate 32.5g

[0054] Methacrylic acid 12.5g

[0055] Thioglycolic acid 1.2g

[0056] Ammonium persulfate 8.8g

[0057] Concrete preparation steps are:

[0058] (1) Preparation of methacrylic acid solution: methacrylic acid solution is made of 12.5g of methacrylic acid, 1.2g of thioglycolic acid and 75g of deionized water; (2) Preparation of hydroxyethyl acrylate solution: hydroxyethyl acrylate solution is made of 32.5g of hydroxyethyl acrylate and 32g of deionized water; (3) Put 400g of deionized water into a four-necked flask equipped with a stirrer and a peristaltic pump, then raise the temperature to 50°C and then add allyl polyoxyethylene ether ( APEG) 300.0g, ammonium persulfate 8.8g, stirred and heated up to 60°C, th...

Embodiment 3

[0059] Embodiment 3: the preparation method of novel environment-friendly polycarboxylate series anti-mud agent:

[0060] The present embodiment selects following raw material:

[0061] Polyethylene glycol methyl ether (MPEG) 300.0g

[0062] Hydroxypropyl Acrylate 12g

[0063] Hydroxyethyl methacrylate 20.5g

[0064] Methacrylic acid 7.5g

[0065] Acrylic acid 5.5g

[0066] Sodium thiosulfate 1.2g

[0067] Potassium peroxodisulfate 7.5g

[0068] Concrete preparation steps are:

[0069] (1) Preparation of methacrylic acid and acrylic acid solution: methacrylic acid and acrylic acid solution are made from 7.5g of methacrylic acid, 5.5g of acrylic acid, 1.2g of sodium thiosulfate and 70g of deionized water; (2) Preparation of hydroxypropyl acrylate and hydroxyethyl methacrylate solution: hydroxypropyl acrylate and hydroxyethyl methacrylate solution is made of 12g of hydroxypropyl acrylate, 20.5g of hydroxyethyl methacrylate and 34g of deionized water; (3) in a Put 360g of...

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Abstract

The invention discloses a novel environment-friendly polycarboxylate based anti-mud agent and a preparation method thereof, which belong to the field of architecture material concrete admixtures. The polycarboxylate based anti-mud agent is prepared from free radical initiated polymerization of polyoxyethylene ether containing unsaturated double bonds, unsaturated esters and derivatives which are taken as monomers as well as unsaturated carboxylic acid and derivatives thereof and a redox initiator. The polycarboxylate based anti-mud agent blocks soil in a concrete floor material to adsorb a polycarboxylate superplasticizer during use, thereby reducing the use amount of a water reducer, saving cost and improving the working performance of concrete. The anti-mud agent synthesized according to the invention can effectively improve the influence of large content of mud in sandstone materials when the polycarboxylate superplasticizer is used.

Description

technical field [0001] The invention relates to a polycarboxylate anti-mud agent and a preparation method thereof, belonging to the field of concrete admixtures for building materials. Background technique [0002] With the continuous development of social economy, the demand for construction concrete is increasing, and at the same time, there are high requirements for admixtures that must be added to concrete. Especially in recent years, the proposal of high-strength self-compacting environmental protection concrete has promoted The development of concrete admixtures in the direction of environmental protection, high water reduction, high slump retention, and good adaptability to concrete floor materials. However, in concrete construction, the soil contained in the ground material will seriously affect the effect of the polycarboxylate water reducer, making the fluidity of the concrete poor and the slump loss large, affecting the progress and quality of the project. The pr...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F220/28C08F220/06C08F222/02C08F4/40C04B24/26C04B103/30
Inventor 牛引生武英袁立志高彩珍袁博刘万利武威江
Owner 山西科腾环保新材料股份有限公司
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